It likely won't be long before someone sees if you can swap the real Mazda2 front clip for the ugly Scion mug. It looks like it would fit - the headlights are the same shape and the hood appears to be the same. But the U.S.-specific bumper laws may proclude that.

Even as is, the frontal appearance could be improved with some creative application of body-colored paint on the thick black inside-the-grille bumper and lower grille slats, along with a horizontal chrome bar delineating the bottom of the grille at the top of the bumper. A second option - leave the bumper black, put a horizontal chrome bar at the bottom of the bumper, and paint the slats below it body color which would subdue their appearance.

To me, this deal makes far more sense for Mazda then for Toyota. At the high point, Mazda sold 19K 2's in 2012, but it dropped to 13K last year.
Whatever deal they made, they are more likely to sell more under the Toyota umbrella, and considering the size of Mazda, anything that cuts costs is a good thing. I think this car would have far more success, however, under the Toyota brand rather than dying Scion.
For Toyota, I do not see the point of trying to save Scion with another automakers car--particularly when the did the most minor cosmetic change possible (which made it look worse). Essentially, it looks like a Mazda inside and out. Apparently they no longer can make a competitive subcompact themselves.

I bought a 2013 Mazda2 at the "Fire sale" price of $14K out the door. I love this car so much that I swore I would never trade it off. But wow, this new Scion AKA 2016 Mazda2, so much equipment, so little money. I may have to give it a go.

Looks like Toyota took the easy route and flipped the old Mazda smiley-face grille upside-down. Almost like the car is unhappy that it doesn't sell as the Mazda2 in the U.S. so Mazda gave it to Toyota, and the car shows it.

That is 32 actual mpg with them flogging the snot out of it... that's actually pretty impressive. I would think a more sane driver would have no trouble getting 42 on the highway, or more if they use hypermiling techniques.

I got an easy 39 mpg on my older, less modern Yaris manual hatchback during a recent trip from SF to Lake Tahoe and back despite getting stuck in traffic a couple times and climbing up and down the Sierra Nevada mountains. I've also seen as low as 26mpg in urban SF-Oakland stop-and-go driving. The Yaris and the iA have almost exactly the same power/weight ratio (actually almost literally the same power and weight) but the iA has a much more modern, efficient drivetrain (especially the overdrive 6th gear) and is more aerodynamic. I see no reason why it wouldn't get 42mpg on a regular basis.

It's ugly, but not just because of the face. Cars in this class just don't look right in sedan form. Fiesta and Sonic have the same problem, but at least on those two you can get a hatchback. I'd still take the Fit if I had to choose a subcompact.